Hey @scothis, I know we decided to only officially support IE8+, but we also said we would accept patches to allow IE6&7 to work, if people wanted to use them.  Line 81 and 82 will break in IE6&7.  We could handle this by setting the timeout features a try-catch -- or we could just wait until somebody complains that IE6&7 are broken.  Just FYI.  -- John